The subdivider of any proposed subdivision lying within the city limits shall also provide at his own expense, public improvements as follows:
A. Curb And Driveway Approaches: All streets must be provided with concrete curb and driveway approaches of a type, size and specifications approved by the city director of engineering. The engineering department shall inspect approaches upon a minimum twenty four (24) hours' advance notice.
B. Public Sidewalks: Public sidewalks must be provided throughout the entire subdivision. The sidewalks must be constructed of one course concrete, not less than five feet (5') wide and not less than four inches (4") in thickness, consisting of a mixture approved by the city director of engineering, except that such thickness shall be six inches (6") where said sidewalk crosses a driveway on top of an approved subbase of compacted CA-6 or other materials previously approved by the city engineering department. Public sidewalks which cross utility lines must be reinforced with three-fourths inch (3/4") rods at least ten feet (10') long.
Note: The ten foot (10') length of rebar installation when not practical to remove existing sidewalks shall be reduced to that length of sidewalk being placed or replaced and such rebar shall be doweled into the existing/abutting sidewalks.
Note: IDOT and CCHD rights of way require a minimum of five inch (5") thickness of all sidewalks on an approved subbase. (Ord. M-48-07, 8-20-2007)
C. Street Trees: Street trees shall be planted throughout the entire subdivision according to the following standards:
1. Trees shall be planted at least thirty feet (30') from street intersections, and at least fifteen feet (15') from driveways and alleys.
2. No tree shall be planted closer than ten feet (10') of a utility pole.
3. Spacing of trees shall be thirty five feet (35') minimum and fifty feet (50') maximum and shall be determined by the director of public works.
4. There shall be no trees planted on parkways less than three feet (3') in width.
5. There shall be no tree plantings on city property unless approved by the director of public works. (Ord. M-21-78, 7-3-1978)
6. Trees shall be a minimum of two inches (2") in diameter.
Only the following species of trees are suitable for planting in subdivisions:
Calleryana pear (all varieties except Bradford)
Ginkgo (male only)
Hawthorne (all varieties tree form only)
Honeylocust (all seedless and thornless varieties)
Linden (all species and varieties)
Norway maple and varieties
Oak (all varieties except Pin oak)
White ash and varieties
Any deviation from this list shall be approved in writing by the city forester or his designee. Additionally, the city forester or his designee shall be notified at the time of planting.
The subdivider shall make a cash deposit of three hundred dollars ($300.00) per lot and six hundred dollars ($600.00) per corner lot, to be held by the director of finance and administrative services to guarantee that the street trees required to be planted under this subsection are in fact planted within thirty (30) days from the date of notification by the director of public works to the subdivider that said trees are planted, and to guarantee that each building site be cleared and cleaned of all debris, building materials, rubbish and other materials. Said cash deposit shall be forfeited to the city if any trees are not planted or any building sites cleaned and cleared as required herein. Failure to plant said trees or to clear the building site shall be reason to withhold final approval of the subdivision by the city engineer. The provisions of this subsection shall also apply to the developer of a single lot or parcel of land. (Ord. M-17-91, 5-20-1991)
D. Street Name Signs: Street name signs of a type approved by the director of public works shall be provided at all street intersections.
E. Water Mains: The water system of the city shall be extended throughout the entire subdivision in such a manner that every lot in the subdivision may be serviced by means of a house connection within its own frontage or other approved method as approved by the city engineer.
F. Fire Hydrants:
1. Fire hydrants shall be installed throughout the entire subdivision at intervals not exceeding three hundred feet (300'). No fire hydrant shall be connected to any water main which is less than six inches (6") in diameter.
2. All fire hydrants shall have a five inch (5") barrel and shall be provided with two (2) 21/2-inch hose connections and one steamer connection. Each fire hydrant shall be provided with an individual auxiliary valve.
G. Sanitary Sewer: A complete system of sanitary sewers shall be constructed throughout the entire subdivision in such a manner as to render the same accessible to every lot within its own frontage or other approved method as approved by the city engineer. (Ord. M-21-78, 7-3-1978)
Where public sewers are available, the property owner must disconnect from the private system and connect to the public system. (2002 Code)
If no sewer outlet is available to the subdivision, application for the use of a private sewer system may be made to the city council. Upon an affirmative vote of the majority of the entire city council, a private sewer system comprising septic tanks and tile seepage fields may be used; provided, however, that the same shall conform with the following conditions: (Ord. M-21-78, 7-3-1978)
Septic tanks and tile fields shall not be permitted. (Ord. M-21-78, 7-3-1978; amd. 2002 Code)
H. Storm Sewer: A storm sewer system shall be constructed throughout the entire subdivision which shall be separate and independent of the sanitary sewer system; provided, a suitable stormwater outlet is available adjoining the subdivision.
I. Streetlights: Streetlights, the locations of which shall be approved by the director of public works shall be installed throughout and adjacent to the entire subdivision. (Ord. M-21-78, 7-3-1978)
In the case of small subdivisions of five (5) lots or less, when in the judgment of the planning and zoning board with advice of the city engineer, no imminent general improvements are expected in the area of subdivision, installation of improvements may be delayed until the whole area is improved. In any case, the subdivider or owner of lots shall be responsible for the expense of the improvements when and if the general area is improved. (Ord. M-21-78, 7-3-1978; amd. Ord. Z-29-15, 10-5-2015)
J. Time Limit: All public improvements shall be constructed within two (2) years of recording of the subdivision. (Ord. M-74-94, 11-21-1994)
K. Alleys: In conjunction with a planned unit development, a subdivision, or the construction of a multi-family apartment, townhome, or condominium building, which will use, as a secondary access, a public alley in the city, the developer or builder, as the case may be, shall as a condition for the approval of their development or building plans be obligated to repave, resurface, or reconstruct the alley as the city director of engineering may determine, based on the condition of the alley. (Ord. M-22-06, 5-15-2006)
L. ROW Improvements: Any and all other right of way improvements as determined necessary by the city director of engineering, city public works director or any consultants as employed by the city manager's office and/or the city of Des Plaines council. Such improvements that are determined necessary shall pertain to any one or all of the following:
1. The life safety, health and welfare of the occupants of the proposed project as well as the neighboring properties;
2. The economic development of the area as a whole;
3. The traffic flow and development of the roadways pertaining to the benefit of the proposed project and/or future developments of the area in question.
4. The benefit of the city of Des Plaines. (Ord. M-48-07, 8-20-2007)